public int noTeenSum(int a, int b, int c) {
  return fixTeen(a) + fixTeen(b) + fixTeen(c);
}
public int fixTeen(int n) {
    if ( (n >=13 && n < 15) || (n > 16 && n <= 19) )
      return 0;
    else
      return n;
  }